5438304491 has 4 divisors (see below), whose sum is σ = 5439097632. Its totient is φ = 5437511352.

The previous prime is 5438304479. The next prime is 5438304497. The reversal of 5438304491 is 1944038345.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5438304491 - 2¹⁰ = 5438303467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5438304497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386195 + ... + 400028.

It is an arithmetic number, because the mean of its divisors is an integer number (1359774408).

Almost surely, 2^5438304491 is an apocalyptic number.

5438304491 is a deficient number, since it is larger than the sum of its proper divisors (793141).

5438304491 is an equidigital number, since it uses as much as digits as its factorization.

5438304491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793140.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 5438304491 is about 73744.8607768704. The cubic root of 5438304491 is about 1758.5491326154.

The spelling of 5438304491 in words is "five billion, four hundred thirty-eight million, three hundred four thousand, four hundred ninety-one".